Résultats de la recherche
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Report on scientific observations onboard the Chilean longliner, ‘Puerto Ballena’, in Statistical Subarea 48.3 from March to May 1996
D. eleginoides, the estimation of the finfish by-catch, the estimation of a conversion factor of ... females with males becoming mature at a much smaller length. Black-browed albatrosses and white-chinned ... % of the longlines were set during daylight hours. Consequently, black-browed albatrosses made up a ... considerable portion of the seabird by-catch. A by-catch of 159 dead seabirds was reported by the scientific ...
Meeting Document : WG-FSA-96/22 : Auteur(s): Selling, J., Kock, K.-H.
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Hydroacoustic surveys of the distribution and abundance of krill: Prydz Bay region – FIBEX, ADBEX II and SIBEX II
-84 and 1984-85. The surveys included a total of 25 transects and covered a distance of 22 500 km over ... program. The results of the surveys and a discussion of the theory and methods employed including sources ... abundance (biomass) of krill in the Prydz Bay region as a whole and the weight density of krill along each ... cruise track is presented in graphical form. These data demonstrate a patchy density distribution with ...
Meeting Document : SC-CAMLR-VII/BG/40 : Auteur(s): Delegation of Australia
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Development of methods for evaluating the management of benthic impacts from longline fishing using spatially explicit production models
vulnerable marine ecosystems (VMEs). We describe a spatially explicit production model that can be used to ... investigate a range of simple scenarios for simulating the effect and management of benthic impacts from ... longline fishing effort. Simulations were carried out under a range of productivity assumptions, impact ... simulated considered a range of areal closure radii and bycatch trigger thresholds. We conclude that ...
Meeting Document : WG-SAM-10/19 : Auteur(s): A. Dunn, S.J. Parker and S. Mormede (New Zealand)
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The annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2012
. A codend liner, usually in place for the entire survey, was used only in the icefish strata, Gunnari ... Ridge, Plateau Southeast and Plateau West, and in a repeat of the hauls in Ground B. Catches in this ... those of 2011 and about one and a half times higher than the long-term average. Champsocephalus gunnari ... Lepidonotothen squamifrons was four times higher than the average. A slightly higher than average weight of ...
Meeting Document : WG-FSA-12/25 : Auteur(s): G.B. Nowara and T. Lamb (Australia)
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An assessment of the use of ocean gliders to undertake acoustic measurements of zooplankton: the distribution and density of Antarctic krill in the Weddell Sea
Abstract: A calibrated 120 kHz single-beam echo-sounder was integrated into an ocean glider and ... the distribution of Antarctic krill (Euphausia superba). During the glider missions, a research vessel ... undertook acoustic transects using a calibrated, hull-mounted, multi-frequency echo-sounder. Net hauls were ... a thresholded schools analysis technique (SHAPES), and acoustic data were converted to krill density ...
Meeting Document : WG-EMM-14/P02 : Auteur(s): D. Guihen, S. Fielding, E. Murphy, K. Heywood and G. Griffiths
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Revised stock assessment of the Patagonian toothfish, Dissostichus eleginoides, in research block C of Division 58.4.4 (Ob & Lena Banks) using CASAL
, Shinsei maru No. 3, has conducted research fishing in accordance with a research plan submitted under CM ... order to participate in the tagging program and achieve a robust stock assessment. A preliminary ... assessment of stock status of D. eleginoides in SSRU C was made by Japan using a CASAL catch-at-length model ... posterior trace. The results seem to be not yet reliable and model not yet robust to use it as a management ...
Meeting Document : WG-FSA-14/06 : Auteur(s): A. Rélot-Stirnemann (France)
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2015/16 in Division 58.4.4
, Shinsei maru No. 3, had conducted research fishing in accordance with a research plan submitted under CM ... its intention to achieve a robust stock assessment that would provide advice on a catch limit ... according to CCAMLR decision rules. This paper aims to present a research plan for 2015/2016 that takes into ... estimated during WG-FSA 2014 using a CASAL model constructed for D. eleginoides. The vulnerable biomass was ...
Meeting Document : WG-FSA-15/67 : Auteur(s): A. Rélot-Stirnemann (France)
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Acoustic data for the 1994 Krill Flux Workshop
Abstract: A methodology is described which when applied to data from an acoustic survey will ... with the specifications given in wg-krill-93 Appendix D. A program written to calculate such sections ... is also described and example output displayed. A similar program calculates current speeds normal to ... a section given an oceanographic dataset of current direction and speed. The two programs produce ...
Meeting Document : WS-Flux-94/04 : Auteur(s): Secretariat
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An illustrative management procedure for exploring dynamic feedback in krill catch limit allocations among small-scale management units
Abstract: A Management Procedure (MP) approach is proposed to assist in advising regarding the ... which simulates the “true” dynamics of the resource with tests across a wide range of scenarios for the ... here have a feedback structure, and hence are able to react and self-correct. It is important, as with ... dynamics. A MP module separate from the operating model contains the methods and rules that are used to ...
Meeting Document : WG-EMM-06/28 : Auteur(s): É. Plagányi and D. Butterworth (South Africa)
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Draft Revised Management Plan for ASPA 149, Cape Shirreff and San Telmo Island, Livingston Island, South Shetland Islands
Abstract: A draft revised Management Plan for ASPA 149 is being considered through an ... intersessional contact group formed during the 2004 meeting of the CEP/ATCM. Since a marine area is included in ... the plan, approval is required by CCAMLR. It should be noted that this area is also a CEMP site ... Management Plans for Antarctic Specially Protected Areas. In preparing the draft plan, a detailed assessment ...
Meeting Document : WG-EMM-04/8 : Auteur(s): Delegations of Chile and USA